Spotlight
News & Insights
Celebrating Women’s History Month: Ruth Wakefield and the Business of Innovation Without a Patent
In Memoriam – J. Christopher Jensen
The 2026 Edition is Available of A Trademark is Not a Copyright or a Patent by William M. Borchard with Deborah K. Squiers
Deborah Squiers will chair and Robert English will speak at PLI’s Fundamentals of Trademark Law in the Global Marketplace 2026 CLE program
Case Studies
Federal Circuit upholds successful opposition against application to register LEHMAN BROTHERS for whiskey
We succesfully represented our client, Major League Baseball Partners, Inc.
We established that cigarette rolling paper size designations are generic.
Federal Circuit reverses cancellation of U.S. trademark registrations
The Second Circuit affirms summary judgment for our client.
What They Say
“[Jonathan] King and [Richard] Mandel paired up to successfully defend non-profit Kars 4 Kids in a trademark appeal, overturning an $8 million disgorgement and injunction against America Can.”
2026 WTR 1000 – The World’s Leading Trademark Professionals“Welcomed back to the firm in January 2025, Louis Ederer brings over four decades of experience representing some of the most iconic global brands. ‘Louis has a tenacity for serving his clients. He is fierce but fair and knows the relevant law inside and out.’”
2026 WTR 1000 – The World’s Leading Trademark Professionals"The team at Cowan is wonderful. Extremely efficient, detail-oriented, and careful with deadlines. The other great aspect is that they firmly stand by the adage that no two clients are the same—so their advice is tailored towards meeting the needs and requirements of individual clients."
2025 Legal 500"Jeffrey Chery is a leading trademark specialist with distinct knowledge of prosecution issues, who receives widespread acclaim for his 'excellent service'."
2025 Lexology Index"Cowan, Liebowitz & Latman is a highly respected boutique particularly proficient in handling copyright and trademark litigation, but also known for its high-quality advice on portfolio management. The firm exhibits expert knowledge of the publishing industry, and frequently handles IP matters relating to advertising."
Chambers USA 2025
Why Us
Founded in 1957, we maintain long-term relationships by providing sound advice, quality legal work, and highly-responsive, personalized service.
What We Do
We represent clients of all sizes across a broad range of industries. The boutique size of our firm, and the breadth of our practice capabilities, allow us to provide a multidisciplinary approach in a cost-effective manner.
Our Clients
Our experience spans a broad range of industries and is international in scope. We appreciate the opportunity of growing with successful companies and brands, as well as creative individuals and accomplished executives.










